Intraocular implant device

ABSTRACT

An intraocular implant device is operable in augmented reality and virtual reality configurations. The intraocular implant device includes an intraocular implant body shaped for positioning inside a lens chamber in an eye. The intraocular implant body has an anterior side facing the cornea of the eye and a posterior side facing the retina of the eye. A photoelectric sensor is disposed on the anterior side of the intraocular implant body. The photoelectric sensor is operable to receive natural, optimized or enhanced incident light through the cornea and to convert the received light into electrical energy for use with one or more circuit components disposed on the intraocular implant body.

CROSS-REFERENCES TO RELATED APPLICATIONS

This application claims priority to and benefit of U.S. Provisionalpatent application No. 62/517,894 filed Jun. 10, 2017 entitledINTRAOCULAR IMPLANT DEVICE, all of which is hereby incorporated byreference in its entirety.

A portion of the disclosure of this patent document contains materialthat is subject to copyright protection. The copyright owner has noobjection to the reproduction of the patent document or the patentdisclosure, as it appears in the U.S. Patent and Trademark Office patentfile or records, but otherwise reserves all copyright rights whatsoever.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not Applicable.

REFERENCE TO SEQUENCE LISTING OR COMPUTER PROGRAM LISTING APPENDIX

Not Applicable.

BACKGROUND

The present disclosure relates generally to ophthalmologic devices forimplantation into the eye, and more particular to intraocular implantdevices and associated power supplies for enhancing or restoring visionin humans and animals.

Many people experience impaired vision as a result of cornealdysfunction or damage, lens dysfunction or damage, or other conditionsof the eye that lead to inability of light to properly pass through theeye to the retina. Various medical procedures have been developed toattempt to correct these types of problems to improve or to restorevision. For example, lens replacement procedures are often used toremove a damaged or occluded lens from the eye. An artificialintraocular lens implant may be inserted into the eye through a smallincision in the cornea during a surgical procedure to replace theremoved lens. Such procedures are helpful to improve conditions such ascataracts or occluded lenses.

However, such conventional procedures for replacing occluded or damagedlenses with replacement intraocular lens implants are often inadequateto restore or enhance vision of patients with corneal conditions. Aslight initially enters the eye through the cornea, any conditions of thecornea which scatter or block light are generally not amenable totreatment via artificial lens replacement procedures. Although manycorneal replacement procedures do exist, they are often inadequate inimproving or restoring sight. Additionally, such procedures requireextensive healing times and may cause other complications in the eye.

What is needed are improvements in devices and methods for improving orrestoring vision in patients with impaired cornea or lens tissue in theeye.

BRIEF SUMMARY

This Brief Summary is provided to introduce a selection of concepts in asimplified form that are further described below in the DetailedDescription. This Summary is not intended to identify key features oressential features of the claimed subject matter, nor is it intended tobe used as an aid in determining the scope of the claimed subjectmatter.

The present disclosure includes a device and methods for enhancingvision in the eyes of humans and animals. An intraocular device includesa projector associated with an intraocular implant. The projector ispositioned on the implant to project an image onto the retina. Theprojected image may provide an overlay of a wirelessly transmitted imageon the normal field of view of the eye with some natural light passingthrough the normal cornea, resulting in an augmented realityconfiguration. Alternatively, the projected image may be a completelyartificial image transmitted to the projector from an external source,resulting in a virtual reality configuration. The system may be used forentertainment, recreational, educational or medical purposes.

One aspect of the present disclosure provides an intraocularphotoelectric power supply system (IO-PEPS) for providing power to oneor more microelectronic devices implanted into a human or animal eye.The intraocular photoelectric power supply system provides an implantshaped and sized to fit inside the intraocular lens chamber after anatural lens has been removed. The implant device of the intraocularphotoelectric power supply system may be inserted into the lens chamberthrough a small hole in the cornea utilizing conventional lensreplacement surgical tools and techniques. The implant device includesone or more photo-sensors, such as but not limited to a photoelectricdevice configured to convert incident light into electricity, such as aphotovoltaic cell. The photo-sensor or photo-sensor array is positionedon the anterior side of the implant device such that light passingthrough the cornea will be incident on the sensor or sensor array whenthe implant device is housed in the lens chamber of the eye. Theincoming light irradiating the sensor or sensor array is converted toelectricity, which is then available for use by other electronicsincluded on the implant device or otherwise installed within the eye.The incoming light may be specifically tuned to a desired frequency,wavelength, quantity, etc. for optimized power generation using thephotoelectric device. The generated electricity may be used immediately,or may be stored in a power storage medium such as a battery on theimplant or in the eye for later use.

Another aspect of the present disclosure includes an intraocularprojection device configured for implantation into an intraocular cavityformed in the lens chamber after a natural lens is removed. Theprojector implant device, or artificial projector lens implant, includesan implant having an anterior side oriented toward the cornea and aposterior side oriented toward the retina. An optical light emitter, orprojector, is installed on the implant posterior side of the implantfacing back into the eye toward the retina. The projector is operable toemit light from the implant located in the lens chamber through the eyetoward the retina, thereby forming a desired light pattern on theretina. The emitted light pattern from the projector corresponds to animage to be processed by the user's brain, and may simulate a naturallight array associated with a real or artificial image. The projectorimplant device is miniaturized such that the projector is compact enoughto fit on a normal-sized lens implant in the intraocular lens chamberafter removal of the natural lens of the eye.

In some embodiments, the implant includes both a projector and aphotoelectric device of an intraocular photoelectric power supply toprovide electrical power for the projector. The projector is positionedon the posterior side of the lens implant facing the retina, and thephotoelectric array is positioned on the anterior side of the implantfacing the cornea. Natural or artificial light entering the cornea isincident on the photoelectric array on the anterior side of the implantinside the lens chamber, and the electrical power generated by thephotoelectric array is transferred to the projector located on theposterior side of the implant facing the retina. The generatedelectrical power is used to power the projector to emit photons in alight pattern corresponding to a desired image onto the retina.

Yet another aspect of the present disclosure provides an intraocularimplant device configured for implantation into the lens chamber afterremoval of a natural lens. The intraocular lens implant device includesa projector on the posterior side facing toward the retina, aphotoelectric array on the anterior side facing toward the cornea, andan external light source spaced from the eye configured to irradiate abeam of light through the cornea onto the photoelectric array. The lightfrom the light source is tuned to provide optimal photoelectricconversion into electricity using the specific photoelectric materialinstalled on the implant. The external light source may be operated withan intensity much higher than natural light because the light from thelight source is not incident on the retina, but is rather blocked by theartificial intraocular lens implant and used for photoelectricgeneration of electric power for use by micro-electronics within the eyesuch as but not limited to the projector on the intraocular implantdevice.

Numerous other objects, advantages and features of the presentdisclosure will be readily apparent to those of skill in the art upon areview of the following drawings and description of a preferredembodiment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of an embodiment of an eye with an open lenschamber having a natural lens removed.

FIG. 2 is a schematic view of an embodiment of an eye with anintraocular implant device in accordance with the present disclosurepositioned for installation into the open lens chamber of the eye.

FIG. 3 is a schematic view of an intraocular implant device inaccordance with the present disclosure.

FIG. 4 is a schematic view of an intraocular implant device inaccordance with the present disclosure.

FIG. 5 is a schematic view of an embodiment of an eye with anintraocular implant device in accordance with the present disclosureinstalled in the lens chamber, and an external light source irradiatingthe anterior side of the intraocular implant device through the cornea.

FIG. 6 is a schematic view of an embodiment of an eye with anintraocular implant device in accordance with the present disclosureinstalled in the lens chamber, and an external light source irradiatingthe anterior side of the intraocular implant device through the corneawhile the intraocular implant device receives a wireless image datasignal from a remote transmitter.

FIG. 7 is a schematic view of an embodiment of an intraocular implantdevice including an intraocular photoelectric power supply and anexternal light source irradiating light through the cornea onto thephotoelectric array included on the implant installed in the lenschamber in the eye.

FIG. 8 is a schematic view of an embodiment of a multilayer ormulti-junction photoelectric array.

DETAILED DESCRIPTION

While the making and using of various embodiments of the presentinvention are discussed in detail below, it should be appreciated thatthe present invention provides many applicable inventive concepts thatare embodied in a wide variety of specific contexts. The specificembodiments discussed herein are merely illustrative of specific ways tomake and use the invention and do not delimit the scope of theinvention. Those of ordinary skill in the art will recognize numerousequivalents to the specific apparatus and methods described herein. Suchequivalents are considered to be within the scope of this invention andare covered by the claims.

In the drawings, not all reference numbers are included in each drawing,for the sake of clarity. In addition, positional terms such as “upper,”“lower,” “side,” “top,” “bottom,” etc. refer to the apparatus when inthe orientation shown in the drawing, or as otherwise described. Aperson of skill in the art will recognize that the apparatus can assumedifferent orientations when in use.

Referring now to the drawings, FIG. 1 illustrates an example schematicof an eye 10, showing a cornea 12 through which light initially entersthe eye. Eye 10 includes a retina 14 on the opposite side of the eyepositioned to receive the incoming light. The sclera 16 surrounds theexterior of the eye 10. A lens is typically positioned in lens chamber18. The iris 22 provides an opening allowing light to pass from theanterior chamber 24 into the lens chamber 18. Many conventionalprocedures are currently known for removal of a damaged or occluded lensfrom lens chamber 18. For example, in cataract surgery a damaged lensmay be phaco-emulsified using a tool to break up the lens. The broken-uplens may then be aspirated from the eye using a negative pressure, andreplaced with a liquid solution to maintain the form of the empty lenschamber 18. Following such procedures, an artificial intraocular lensimplant is inserted into the empty lens chamber 18 using known tools andtechniques.

The present disclosure provides a new type of implant device forinstallation into an empty lens chamber 18, as shown in FIG. 1. Forexample, as seen in FIG. 2, an intraocular implant device 40 is shownoutside of the eye 10 for implantation into empty lens chamber 18 of eye10. Intraocular implant device 40 includes an anterior side 48positioned to face cornea 12 after implantation, and a posterior side 50positioned to face retina 14 after implantation. Intraocular implantdevice 40 includes numerous technological innovations, and is operableto provide artificial sight improvement or sight restoration.

Intraocular Photoelectric Power Supply (IO-PEPS)

One aspect of intraocular implant device 40 provides an electrical powersupply configured to generate electrical power for use by on-boardelectronics on the intraocular implant device 40 or alternatively housedwithin the eye. As such, the intraocular implant device 40 includes anintraocular photoelectric power supply (IO-PEPS) device.

As seen in FIG. 3, in some embodiments, intraocular implant device 40includes a body 42 having an anterior side 48. A photoelectric array 44including one or more photoelectric sensors is positioned on anteriorside 48. Such sensors include any suitable photovoltaic or photoelectricsensors known in the art capable of converting incident light 56received upon photoelectric array 44 into electricity. Photoelectricarray 44 covers a portion of the surface of the anterior side 48 ofimplant device 40. Photoelectric array 44 includes at least oneelectrical output operable to transmit electric power to a circuitcomponent. In some embodiments, photoelectric array 44 is coupled to apower supply 54, as shown in FIG. 3. Power supply 54 includes anysuitable power converter or power storage device on intraocular implantdevice 40. Power supply 54 in some embodiments includes a batteryconfigured for storing electrical power generated by photoelectric array44 for later use by one or more other circuit components. Power supply54 may be continuously recharging as additional incoming light isincident on photoelectric array 44 and also simultaneously distributingelectrical current to another circuit component.

Intraocular implant device 40 is generally opaque when housed within thelens chamber 18 such that incident light 56 entering the eye does notpass optically through the lens body 42. Thus, all incident lightentering the eye may be utilized by photoelectric array 44 for energyconversion. As such, the incident light 56 entering the eye may bemanipulated to various characteristics for optimization of photoelectricconversion by photoelectric array 44. For example, in some embodiments,various photovoltaic cells used in photoelectric array 44 provideimproved energy conversion efficiencies when the incident light 56 has achrominance in a spectral bandwidth tuned specifically to the propertiesof the photovoltaic junctions.

Additionally, because the intraocular implant device 40 is generallyopaque, and because the cornea may generally withstand greater luminancethan the retina can, the incident light 56 may be further tuned to haveincreased luminance over natural light to further optimize energyconversion in photoelectric array 44. Thus, the incident light 56 may begenerated using an external light source with modulated chrominance andluminance characteristics as compared to natural light to furtherimprove power generation from the intraocular photoelectric powersupply.

Your Eye as the Screen (YEATS)

One application of the IO-PEPS feature on an intraocular implant device40 is to power a projector device 46, shown for example in FIG. 3,housed on the same implant device 40 or otherwise disposed within theeye 10. For example, projector 46 may include any suitable light emitterpositioned within the eye in an orientation to project generated image58 onto the retina. The emitted light from the projector 46 is incidenton the retina much in the way natural light may be incident on theretina after passing through the cornea and the lens. However, inpatients with damaged cornea tissue or damaged lens tissue, by the timethe light entering the eye makes it to the retina the light pattern isgreatly distorted or blocked entirely, causing vision to be distorted orblurred, or causing blindness. By placing a rearward-facing projector 46on an intraocular implant device 40, an artificial image may beprojected onto the retina to simulate natural light, thereby allowing auser to see the artificial image generated by the projector much likethe patient would see normally using natural light. A significantdifference is that, when using projector 46, the generated image 58 maybe controlled to include image data from any source, so the user'svision may be enhanced or replaced entirely over the field of viewavailable from natural light. The generated image 58 may be projected toenhance vision in a normal user or to improve vision in a patient withimpaired vision.

During use, projector 46 is powered by electric power generated on-boardthe intraocular implant device 40 using photoelectric array 44.Photoelectric array 44 generates enough electric power to operateprojector 46 either directly, or through a power supply 54. In someapplications, projector 46 may be turned off remotely while allowingphotoelectric array 44 to charge power supply 54. Once a sufficientamount of energy is stored in power supply 54, projector 46 may beturned on wirelessly, and photons may be emitted by projector 46 usingone or more light emitters. The generated image 58 is then illuminatedonto retina 14 through the eye. The retina 14 processes the incidentlight much like it would natural light, forming an image in the brainand allowing a user to perceive the image.

The generated pattern of photons or generated image 58 projected ontothe retina 14 is generated by projector 46 using an input signal 66received by a wireless receiver 52 in some embodiments, as seen in FIG.3 and in an alternative embodiment in FIG. 4. Input signal 66 includesinformation associated with photon pattern to be generated by one ormore light emitters within projector 46. Thus, the projector 46 isconfigured to receive a digital input signal including the image data,and to emit photons from the light projector onto the retina in apattern representative of the image data. The input signal 66 is passedto intraocular implant device 40 wirelessly from a remote transmitter64. The input signal 66 is passed to a wireless transceiver 52 housedon-board the implant device 40 or alternatively housed at anotherlocation within the eye. In some embodiments, wireless transceiver 52 isintegrated onto projector 46 such that the two are combined as a singleunit with wireless data receiver or transmission capabilities. Imagedata transmitter 64 includes any suitable external device forcommunicating an input signal 66 to intraocular implant device 40, andspecifically to wireless receiver 52 on intraocular implant device 40.Any suitable wireless signal transmission protocol for transmittingdigital or analog signals associated with imagery may be used for inputsignal 66.

Once the input signal 66 is received by intraocular implant device 40,the signal is passed to the projector 46, and the projector executesinstructions associated with the signal to generate photonsrepresentative of an image to be displayed on the retina. In someembodiments, the input signal 66 corresponds to photographs, text,illustrations, videos or any other image data.

As shown in FIG. 3 and FIG. 4, in various embodiments, power supply 54is also connected to wireless receiver 52 in some embodiments. Thus,power supply 54 may simultaneously supply power to projector 46 and towireless receiver 52, if necessary. Alternatively, in some embodiments,photoelectric array 44 provides generated electricity directly towireless receiver and projector.

Wireless receiver 66 may be positioned at any suitable location onintraocular implant device 40, including on a common circuit boardstructure with one or more other circuit components, such as but notlimited to power supply 54, projector 46, photoelectric array 44 orother components. In some embodiments, one or more antennae areconnected to wireless receiver 66 to enhance reception of input signal66 from image data transmitter 64.

One aspect of the present disclosure provides a system that may improvevision over natural analog vision. For example, when natural lightenters the eye, the light incident on the retina is limited by theamount of light entering through the cornea and lens. However, usingprojector 46, additional, higher resolution light patterns may beprojected onto the retina to improve or enhance vision over naturalanalog vision.

Artificial Vision System

Referring now to FIG. 5, an artificial vision system includes anintraocular implant device 40 including an intraocular photoelectricpower supply, including a photoelectric array 44 disposed on theanterior side of implant device 40 facing toward the cornea 12.Additionally, a projector 46 is disposed on the posterior side ofimplant device 40 facing the retina 14. An external light source 68generates a beam of artificial incident light 56 directed toward thecornea. The generated artificial light 56 is produced solely for thepurpose of powering the intraocular photoelectric power supply housed onintraocular implant device 40 installed in the lens chamber 18 withinthe eye 10. The generated artificial light 56 is tuned in bothchrominance (wavelength and frequency) and luminance (brightness) toprovide optimized energy conversion and electric power generation insidethe photoelectric array 44. The power generated by photoelectric array44 is used to charge power supply 54, and is subsequently used to powerprojector 46 to generate a pattern of photons to create a generatedimage 58 for irradiation of the retina 14. Thus, the only light incidenton the retina 14 is the light generated by the projector 46.

An external transmitter 64 sends a wireless input signal 66 tointraocular implant device 40. Input signal 66 is received by a wirelessreceiver 52 on the implant device 40, and the input signal 66 is passedto projector 46 to determine the pattern of generated photons or agenerated image 58 projected onto retina 14 by projector 46. Inputsignal 66 can include data packets correspond to image data from anysource, such as an external camera.

As seen in FIG. 5, the incident light beam 56 generated by externallight source 68 is collimated in some embodiments to align with theopening of the iris 22 such that the light will be incident on thephotoelectric array 44. In some embodiments, photoelectric array 44 isdimensioned to correspond to the surface region on the body 42 ofintraocular implant device 40 aligned with the circular opening definedby the iris 22.

Referring to FIG. 6 and FIG. 7, in additional embodiments, externallight source 68 may include a wearable technology including one or morelight emitters spaced from the eye 10 and configured to emit light backtoward the eye 10 for the specific purpose of powering one or moreintraocular photoelectric power supply (IO-PEPS) devices housed in thelens chamber 18 in one or both eyes. For example, in some embodiments, awearable eyeglass frame 70 includes a first external light source 68 aand a second external light source 68 b. Frame 70 includes first andsecond temples 72 positioned to engage a user's head, as shown in FIG.7. Each external light source 68 emits a beam of artificial light backtoward the user's eye 10. The beam of generated external light 56 passesinto the eye through the cornea 12, and is incident on the photoelectricarray 44 on intraocular implant device 40 housed in lens chamber 18. Theexternal light source 68 includes any suitable source of light forpowering photoelectric array 44. The light emitted by external lightsource 68 does not pass directly through the eye to the retina. Instead,the light is converted into electrical energy via the photoelectricarray 44, and is then subsequently converted back into photons usingprojector 46 to project a desired pattern corresponding to an image ontothe retina 14.

In other embodiments, optimized light power may be supplied to theintraocular implant device 40 by placing a rechargeable, optimizedlight-power source 68 on the inside of a rechargeable epi-corneal orextraocular device, such as but not limited to a scleral contact lens.This allows the device 40 to receive power even when the user's eye 10is closed. These extraocular power sources may selectively comprise acamera 64 b and photoelectric array 44 on the front. These optimizedlight power sources may be necessary for situations in which thephotoelectric array 44 is not capturing a sufficient amount of energy topower the intraocular device 40. Thus, these periods of intensifiedcharging may allow the intraocular device 40 to receive sufficientenergy to recharge the internal power supply 54 on the device 40.

As shown in FIG. 6, the image generated by projector 46 may come frommany different sources. In some embodiments, transmitter 64 a includes amobile device such as a cell phone, laptop, tablet computer, television,or other external electronic device. In some embodiments the transmitter64 a is a video camera which transmits a video feed. Transmitter 64 amay include locally stored image data to be used for input signal 66.Alternatively, transmitter 64 a may connect dynamically to a remoteimage storage database 76 via a network, or cloud 74 to access contentfor input signal 66. In some embodiments, digital image content, such asmovies, images, etc. are streamed from a remote database 76 via anetwork 74 using network signals 78 to provide access to image data forinput signal 66.

Referring further to FIG. 6, in some embodiments, an external camera 64b is also configured to produce an input signal 66. The camera 64 b ispositioned to acquire image data associated with the camera's field ofview. The camera 64 b may be local to a user, for example may beinstalled on eyeglass frame 70, or the camera 64 b may be remote suchthat the field of view of the camera is not in the vicinity of the user.The artificial vision system allows a user to dynamically change theinput on projector 46 such that the projector 46 may select to displayan image pattern associated with input signal 66 from first transmitter64 a or alternatively from camera 64 b. In additional embodiments,camera 64 b may instead include a second transmitter such as a cellphone, laptop, tablet computer, television, or other external electronicdevice. In some embodiments, projector 46 includes multiple inputchannels, and is selectively operable to display image data associatedwith each separate channel, thereby allowing a user to switch betweeninput signals from different external image data sources.

Non-Medical Uses

The above-referenced devices may also be utilized for non-medicalapplications such as consumer entertainment, professional visionaugmentation, virtual reality content generation and display, militaryapplications, or other non-medical applications. For example, in someembodiments, a user with an intraocular implant device 40 installed inone eye is able to selectively turn on the device to receive image datafrom any external source via input signal 66. The user may be able tomaintain a natural lens in the second eye to continue to rely on naturalanalog vision when not using device 40. As such, the intraocular implantdevice 40 provides an implantable brain-machine interface capable ofdelivering digital image content to the user directly through an imageprojected directly onto the retina 14. The image may be manipulated inmany ways by projector 46 that are not possible via standard analoglight transmission through the cornea and lens. This makes enhanced,augmented and artificial vision possible.

Medical Uses

The above-referenced devices may also be used in medical applicationsfor sight restoration or sight improvement. In such medical applicationsa patient may receive an intraocular implant device 40 in the lenschamber of each eye. The patient may then utilize a wireless transmitter64 to transmit image data from an external source to each intraocularimplant device 40. The transmitter 64 includes a camera oriented towardthe user's local environment in some applications to simulate naturalvision. Alternatively, transmitter 64 includes an auxiliary input fromsome other source of digital image content, such as computer, mobilephone, tablet or other source. Medical patients with conditions such ascornea damage may primarily rely on the intraocular implant devices 40to provide artificial vision where natural analog vision simply is nolonger possible due to the inability of light to properly enter and passthrough the eye to the retina.

The present disclosure further provides associated methods of modifying,improving, restoring, augmenting or restoring vision in humans andanimals using the previously described devices and techniques. Forexample, a method of restoring vision in an eye comprises the steps of:(1) providing an intraocular implant device including an anterior sideand a posterior side, a photoelectric array on the anterior side, and aprojector on the posterior side; (2) positioning the intraocular implantdevice in the lens chamber of the eye such that the photoelectric arrayfaces the cornea and the projector faces the retina; (3) illuminatingthe photoelectric array with input light from an external light source;(4) converting the input light into electrical energy via thephotoelectric array; (5) powering the projector using the electricalenergy converted by the photoelectric array; and (6) projecting photonsgenerated by the projector onto the retina, wherein the projectedphotons correspond to digital image data received wirelessly by theintraocular implant device from a remote transmitter. The method mayfurther comprise sending a wireless input signal to the projector froman external transmitter, wherein the wireless input signal containsimage data; emitting photons from the projector in a patternrepresentative of the image data; providing an external light sourcepositioned to emit light towards the photoelectric sensor; receiving thelight in the photoelectric sensor; converting the light into energy; andpowering the intraocular implant device with the energy.

Referring to FIG. 8, an additional embodiment may utilize multilayer(multi-junction) photoelectric cells 120. The multi-junctionphotoelectric device may comprise layers of stacked photoelectric p-njunctions, wherein each junction is receptive to a specific bandwidth oflight frequencies and permits other bandwidths of light to pass through.A first layer comprises an incident light surface 124. An incident lightsurface 124 is selected to allow photons which have an energy levelbelow a first specified frequency to pass through the incident lightsurface but captures photons having an energy level above the firstspecified frequency. A second layer 126, positioned below the incidentlight surface is selected to allow photons which have a second energylevel below a second specified frequency to pass through the secondlayer, wherein the layer captures photons at a frequency between thefirst specified frequency and the second specified frequency. In thismanner, a plurality of layers 124, 126 may be stacked to capture lightwithin a large spectrum. The layers 124, 126, 128 are stacked indescending magnitude of frequency, which allows light energycorresponding to a receptive frequency of each junction to be capturedby each individual layer. This configuration provides for energy capturethat is optimized in the frequency band of each individual layer andhigher overall efficiency of energy conversion.

Thus, although there have been described particular embodiments of thepresent invention of a new and useful INTRAOCULAR IMPLANT DEVICE, it isnot intended that such references to particular embodiments be construedas limitations upon the scope of this invention.

What is claimed is:
 1. A method of providing artificial vision to auser, comprising: implanting an intraocular implant device into a lenschamber of a user, wherein the intraocular implant device comprises: anintraocular implant body; a photoelectric sensor disposed in theintraocular implant body; and a projector operable to receive power fromthe photoelectric sensor; and a receiver operable to wirelessly receivea digital input signal; sending a wireless input signal to the projectorfrom an external transmitter, wherein the digital input signal containsimage data; emitting photons from the projector in a patternrepresentative of the image data; providing an external light sourcepositioned to emit light towards the photoelectric sensor; receiving thelight in the photoelectric sensor; converting the light into electricalenergy; powering the intraocular implant device with the electricalenergy; and emitting specific wavelengths of light optimized for use bythe photoelectric sensor.
 2. The method of claim 1, wherein the digitalinput signal includes image data captured by an external video camera.3. The method of claim 1, wherein the digital input signal includesimage data received from a remote image storage database.
 4. The methodof claim 1, further comprising switching between a plurality of imagesources.